4637780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{211}}^1$

素因数の和:384

約数の個数: 48

約数和(自身を含む): 11254656

約数和(自身を除く): 6616876

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 157, 211, 314, 422, 628, 785, 844, 1055, 1099, 1477, 1570, 2110, 2198, 2954, 3140, 4220, 4396, 5495, 5908, 7385, 10990, 14770, 21980, 29540, 33127, 66254, 132508, 165635, 231889, 331270, 463778, 662540, 927556, 1159445, 2318890, 4637780]

約数ペア:

[(1, 4637780), (2, 2318890), (4, 1159445), (5, 927556), (7, 662540), (10, 463778), (14, 331270), (20, 231889), (28, 165635), (35, 132508), (70, 66254), (140, 33127), (157, 29540), (211, 21980), (314, 14770), (422, 10990), (628, 7385), (785, 5908), (844, 5495), (1055, 4396), (1099, 4220), (1477, 3140), (1570, 2954), (2110, 2198)]